code: def testInvalidInput(self):
      self.assertComputeFails(LogSpectrum(), [])
      self.assertComputeFails(LogSpectrum(), [0.5])
  
file_path: essentia/test/src/unittests/spectral/test_logspectrum.py
imports: from essentia_test import *
  import numpy
label_desc: Use image node_id 3 for calling the TestLogSpectrum obj's underlying member method code with example usage: obj.testInvalidInput() without return types